"Happyline" Smart Hula Hoop， Non Dropping Hula Hoop with Auto Counting， Detachable Weight Adjustable Hoola Hoops for Home Workout. Non-dropping Hula Hoop: This fitness gear trims your waistline without torturing your hips. And the best thing is this hula hoop can be strapped so you won't get bruised during workouts. Auto Counting Function: A built-in smart counter that calculates & stores data of your exercises. With the LCD screen， could easily count how many you have hoopped! Helps you keep track of your fitness progress! Prevent excessive exercise Adjustable Size & Depatchable Sections: This hoola hoop can be adjusted differently according to the waist's size from 23.6-41.7". The Sections are very easy to snap together and take apart， easy to store， save space Easy to Assemble: To build this gear， simply lock the parts to each other along with the LCD screen. Then slide the centrifugal ball on the outer side， and fix the support pad on the inner side. Your sweat session might sizzle more calories beyond you think. Put on your favorite music and start a pleasant and comfortable workout.

"Happyline"  Smart Hula Hoop， Non Dropping Hula Hoop with Auto Counting， Detachable Weight Adjustable Hoola Hoops for Home Workout.